If anyone, even you, encrypts (i.e. “locks”) something with your public-key, only you can decrypt it (i.e. “unlock” it) with your secret, private key.
If you encrypt (i.e. “lock”) something with your private key, anyone can decrypt it (i.e. “unlock” it), but this serves as a proof that you encrypted it: it’s “digitally signed” by you.
The socialist Comradely Object is meant to seduce with its industrial nakedness, to create an emotionality through revealing how it works, how it’s made, what it can do for you as an extension of the human being. It reveals itself as a product of labor. Ideally and for now, impossibly, the Comradely Object is supposed to be born outside of market forces, but to seduce and appeal it has to compete, to mimic the capitalist item. Arvatov believed that within the commodity fetish was the place of fantasy and desire, where the worker’s dreams took shape. The Comradely Object had to move at an angle, to supplant the capitalist object as something to be desired. It had to offer a way of life.